But it turns out the agency, which specializes in banning (potentially) offensive ads, has fielded about 431,100 complaints in its 50-year history -- that's a lot of pearl-clutching. So which fashion ad has ignited the most controversy over the years?

The controversial YSL spot, which features Dahl lying on her back completely naked, received 948 complaints, making it the eighth most-complained-about. According to the ASA, "We agreed with public complaints that a poster ad for Opium perfume featuring a naked Sophie Dahl was sexually suggestive and, in an untargeted medium, likely to cause serious or widespread offence."